package com.oa.service;


import com.oa.bean.Pager;
import com.oa.bean.TClasses;

public interface Classes_dtf_Service {
	
	public TClasses save(TClasses classes);

	public void delete(TClasses i);

	public TClasses update(TClasses t);

	public TClasses select(Integer pk);
	
	public int queryId(TClasses user);

	public Pager selects(Pager pager);

	public int getcount();

}
